body,ul,h2,p,h3,li{
    margin: 0;
    padding: 0；
}
.navbar{
    height: 50px;
    width: 100%;
    background:rgba(100, 200, 30, 0.1)
}
.container{
   margin: 0 auto;
    width: 1000px;
}
.navbar-header{
    font-weight: bold;
    float: left;
    line-height: 50px;
    height: 50;
    color: gray;
}
.navbar-nav{
    float: left;
}
li{
    list-style: none;
    float: left;
}

.navbar-nav li a{
    text-decoration: none;
    padding: 15px;
    line-height: 50px;
    height: 50px;
    color: gray;
}
.num{
    float: right;
    height:50px;
    line-height: 50px;
  
}
.num a{
    text-decoration: none;
    color: gray;
}
.clear{
     zoom:1;
     /*为了兼容IE7*/
}
.clear::after{
    content: "";
     display:block;
    clear: both;
}
.doc-head{
    width: 100%;
    height: 570px;
    background-color: #563d7c;
    text-align: center;
    color:white;

}
.doc-head span{
    font-size: 108px;
    border: 1px solid white;
    width: 144px;
    height:144px;
    display:inline-block;
    margin-top: 80px;
    -webkit-border-radius:10px;
    -moz-border-radius:10px;
    border-radius: 10px;
}

.doc-head .title{
    width: 720px;
    margin:0 auto;
    margin-top:30px;
    font-size: 24px;
    margin-bottom:30px;
}
.doc-head a{
    text-decoration: none;
    color: #fff;
    border: 1px solid #fff;
    padding:15px 30px;
    font-size: 20px;
    border-radius: 5px;
}
.doc-head .version{
    margin: 30px 0;
    font-size: 14px;
    color: #9783b9;
}
.round{
    margin: 0 auto;
    text-align: center;
    width: 1170px;
    margin-top: 100px;
}
.round .ttitle{
    font-size: 40px;
    font-weight: 400;
    color: #333;
}
.round .ahead{
    max-width: 80%;
    color: #333;
    margin-left: auto;
    margin-right: auto;
    font-size: 21px;
}
.line{
    width: 100px;
    margin: 40px auto;
    height: 1px;
    background: #f00;
}
.clear::after{
    content: "";
    display: block;
    clear: both;
}
.round ul{
    width: 1170px;
    margin: 0 auto;
    padding: 0;
}
.round li{
    width: 33.3333%;
    float: left;
    list-style: none;
   padding: 0 15px;
    box-sizing: border-box;
    text-align: center;
}


.round li img{
    width: 100%;
    height: 100%;
}
.round li h3{
    font-size: 24px;
    color: #333;
    font-weight: 400;
    margin-top: 20px;
    margin-bottom: 5px;
}
.round li p{
    margin-bottom: 10px;
    font-size: 16px;
    line-height: 1.5;
    color: #555;
    box-sizing: border-box;
}
.line{
    width: 100px;
    margin: 40px auto;
    height: 1px;
    background: #f00;
}
.round .middle{
    max-width: 80%;
    color: #333;
    margin-left: auto;
    margin-right: auto;
    font-size: 21px;
    margin-bottom: 30px;
}
.round a{
    text-decoration: none;
    color: #563d7c;
    border: 1px solid #563d7c;
    padding:10px 16px;
    font-size: 20px;
    border-radius: 5px;
    box-sizing: border-box;
}
.around{
    margin: 0 auto;
    margin-top: 100px;
    text-align: center;
    width: 1170px;
}
.around .ttitle{
    font-size: 40px;
    font-weight: 400;
    color: #333;
}
.around .ahead{
    width: 758px;
    color: #333;
    margin-left: auto;
    margin-right: auto;
    font-size: 21px;
}
.around .line{
    width: 100px;
    margin: 40px auto;
    height: 1px;
    background: #f00;
}
.around img{
    float: left;
    width: 25%;
}
.around .middle{
    max-width: 80%;
    color: #333;
    margin-left: auto;
    margin-right: auto;
    font-size: 21px;
    margin-bottom: 30px;
}
.around a{
    text-decoration: none;
    color: #563d7c;
    border: 1px solid #563d7c;
    padding:10px 16px;
    font-size: 20px;
    border-radius: 5px;
    box-sizing: border-box;
}
.clear::after{
    content: "";
    display: block;
    clear: both;
}
.foot{
    padding: 50px 0;
    margin-top: 100px;
    background-color: #2a2730;
}
.footstep{
        margin-bottom: 20px;    
}
.foot li{
        list-style-type: none;
}
.footstep li a{
    text-decoration: none;
    padding: 15px;
    line-height: 1.4287743;
    color: #fff;
    font-size: 14px;
}
.foot p{
    color: #99979c;
    font-size: 14px;
    padding-left: 40px;
    margin-left: 15px;
}
.foot p a{
    color: #fff;
    text-decoration: none;
}

